Abstract
The co-generation system by sawdust gasification has been developed. The gasification reactor is vertical fixed bed type and heat resources for gasification depends on partial oxidization of sawdust by the air sucked through the bottom of the reactor. The produced gas is washed and is converted to electric power it the gas engines and generator. Waste heat energy is recovered as hot water and is converted into hot air which is used for drying lumber. The efficiency of energy recovery is beyond 50% in this co-generation system. The mechanism of reaction in the gasification reactor is not clear, so we measured the characteristics of this system which is represented the product gas, residue and so on. And we investigated the condition of the inside reactor which was stopped after 5 years operation. Consequently a part of the reaction condition in the gasification reactor became clear.
